Terrestrial Trunked Radio (TETRA) - Direct Mode Operation (DMO) - Part 6: Security (Endorsement of the English version ETS 300396-6:1998 as German standard)
Terrestrial Trunked Radio (TETRA) - Direct Mode Operation (DMO) - Part 6: Security (Endorsement of the English version EN 300396-6 V1.2.1 (2004-05) as German standard)— 2 стр.